[asterisk-bugs] [JIRA] (ASTERISK-22770) Crash in chan_dahdi during caller id read

[Rusty Newton (JIRA)]

Rusty Newton created ASTERISK-22770:
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             Summary: Crash in chan_dahdi during caller id read
                 Key: ASTERISK-22770
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22770
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_dahdi
    Affects Versions: SVN, 1.8.17.0
         Environment: Ubuntu 10.04
            Reporter: Michael Walton


Occasional Asterisk core dump during caller id read on analog channel. Further investigation and core dump analysis shows that a negative return value from the read() in my_get_callerid slips through as a negative length argument to callerid_feed() if the errno returned by DAHDI is ELAST. This would likely cause the crash.

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